Portable telephone set



FIG. 1 is a front, top and left side perspective view of a portabletelephone set showing our new design;

FIGS. 2 and 3 are respectively front and rear elevational views thereof;

FIGS. 4 and 5 are respectively left and right elevational views thereof;and,

FIGS. 6 and 7 are respectively top and bottom plan view thereof.

The ornamental design for a portable telephone set, as shown anddescribed.